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[Arrhythmias and pregnancy]

T Alberca Vela1, J Palma Amaro, F García-Cosío Mir

  • 1Servicio de Cardiología, Hospital Universitario de Getafe, Madrid.

Revista Espanola De Cardiologia
|January 10, 1998
PubMed
Summary

Most pregnancy arrhythmias are benign and well-tolerated. Acute treatments like medications and cardioversion are generally safe for the fetus, but chronic therapy should be avoided.

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Area of Science:

  • Cardiology
  • Maternal-Fetal Medicine
  • Pharmacology

Context:

  • Arrhythmias are common during pregnancy, often presenting as benign conditions.
  • Pregnancy alters arrhythmia tolerance and introduces fetal risks associated with treatment.
  • Cardiac structure is a key determinant of arrhythmia tolerance.

Purpose:

  • To review the safety and efficacy of managing arrhythmias during pregnancy.
  • To discuss therapeutic options for acute and chronic management of tachycardias in pregnant patients.
  • To evaluate risks to the fetus from maternal arrhythmias and their treatments.

Summary:

  • The majority of arrhythmias during pregnancy are benign and well-tolerated in women with structurally normal hearts.
  • Acute management of narrow and wide tachycardias can utilize medications like adenosine, digoxin, propranolol, procainamide, and flecainide, as well as direct current countershock, with generally low fetal risk.
  • Chronic antiarrhythmic drug therapy is best avoided due to potential fetal risks; radiofrequency ablation is a viable alternative for women planning pregnancy.

Impact:

  • Provides guidance on safe and effective management of arrhythmias in pregnant patients.
  • Highlights the importance of considering fetal well-being when selecting treatments.
  • Suggests radiofrequency ablation as a proactive measure for women with a history of tachycardias planning conception.

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